diff -up ImageMagick-6.2.8/wand/mogrify.c.page-parse ImageMagick-6.2.8/wand/mogrify.c
--- ImageMagick-6.2.8/wand/mogrify.c.page-parse	2010-04-08 10:54:40.000000000 +0100
+++ ImageMagick-6.2.8/wand/mogrify.c	2010-04-08 10:54:47.000000000 +0100
@@ -5239,6 +5239,7 @@ WandExport MagickBooleanType MogrifyImag
         if (LocaleCompare("page",option+1) == 0)
           {
             char
+              *canonical_page,
               page[MaxTextExtent];
 
             const char
@@ -5252,7 +5253,7 @@ WandExport MagickBooleanType MogrifyImag
 
             if (*option == '+')
               {
-                (void) RemoveImageOption(image_info,option+1);
+                (void) DeleteImageOption(image_info,option+1);
                 (void) CloneString(&image_info->page,(char *) NULL);
                 break;
               }
@@ -5260,14 +5261,16 @@ WandExport MagickBooleanType MogrifyImag
             image_option=GetImageOption(image_info,"page");
             if (image_option != (const char *) NULL)
               flags=ParseAbsoluteGeometry(image_option,&geometry);
-            flags=ParseAbsoluteGeometry(argv[i+1],&geometry);
+            canonical_page=GetPageGeometry(argv[i+1]);
+            flags=ParseAbsoluteGeometry(canonical_page,&geometry);
+            canonical_page=DestroyString(canonical_page);
             (void) FormatMagickString(page,MaxTextExtent,"%lux%lu",
               geometry.width,geometry.height);
             if (((flags & XValue) != 0) || ((flags & YValue) != 0))
               (void) FormatMagickString(page,MaxTextExtent,"%lux%lu%+ld%+ld",
                 geometry.width,geometry.height,geometry.x,geometry.y);
             (void) SetImageOption(image_info,option+1,page);
-            image_info->page=GetPageGeometry(page);
+            (void) CloneString(&image_info->page,page);
             break;
           }
         if (LocaleCompare("pen",option+1) == 0)